QUARRIES IN HANCOCK COUNTY. 115 
The granite (specimen 34, a) is a biotite granite of medium pink- 
ish-buff gray color and of medium, inclining to coarse, even-grained 
texture, consisting, in descending order of abundance, of a pinkish- 
buff potash feldspar (orthoclase and microcline), smoky quartz, a 
milk-white soda-lime feldspar (oligoclase) and black mica (biotite), 
together with accessory magnetite, and, rarely, a little greenish horn- 
blende. The potash feldspars are intergrown with plagioclase and 
measure up to over one-half inch, but most of the biotite is con- 
siderably under one-tenth inch. The stone takes a good polish, but 
the contrast between the polished and rough surface is feeble, owing 
to the smallness of the biotite scales. The contrasts are mostly 
between the quartz and the feldspars. The company reports a test 
of crushing strength of between 18,000 and 19,000 pounds per square 
inch. 
The quarry, opened in 1901, measures 500 by 250 feet and has an 
average depth of 15 to 18 feet. The drainage supplies the boilers. 
There is no stripping. 
Rock structure: The sheets, from 1 to 7 feet thick, dip 15° south. 
Vertical joints, striking N. 15° E., recur at intervals of 50 feet; 
others, striking N. 80° W., recur but twice as continuous joints. 
The rift is vertical, north-south. Sap is confined to the sheets of 
the upper 3 feet. No knots or veins. 
The plant consists of 3 derricks, 3 engines, a steam drill, and a 
steam pump. 
Transportation is effected by gravity and cable on a track to wharf, 
1,200 feet off. 
The product is random, dimension, and paving stone, which go to 
New York, where the firm has its cutting works. 
The Toothachers Cove quarry is near end of that cove, in the 
western part of Swans Island, H miles north-northwest of Swans 
Island village. The property is owned by B. E. Rowe, of Swans 
Island. The mineral right was leased to Wilbur and Havey, address, 
Swans Island, but is now held by C. J. Hall of the same place. In 
the fall of 1905 a company was being formed to operate the quarry. 
The granite (specimen 33, a) is a biotite granite of medium pink- 
ish-gray color and coarse, even-grained texture, with feldspars up to 
three-fourths inch and biotite fully one-tenth inch. It consists, in 
descending order of abundance, of light-pink potash feldspar (ortho- 
clase), smoky quartz, cream-colored soda-lime feldspar (oligoclase), 
and black mica (biotite), together with accessory magnetite and 
titanite. The orthoclase is intergrown with plagioclase. The oligo- 
clase is altered to a white mica. The contrasts between the four 
minerals are marked. 
The quarr}^ is 50 by 25 feet, and the working face is 20 feet high. 
There are two other small openings. 
